Four people, including three teenagers, have been arrested for aggravated robberies in Waikato.
On Sunday evening, police said a search warrant has been carried out in Rukuhia with help from the Armed Offenders Squad.
A 13-year-old, two 17-year-olds, and a 29-year-old were arrested as a result.
Detective Senior Sergeant Scott Neilson said the group's offending had spanned several months.
"Offending such as aggravated robberies has a real impact on victims, their families, and the community.
"A considerable number of resources have been involved in the operation, and today's outcome is a good result."
The 29-year-old would appear in Hamilton District Court on Monday facing charges of theft, unlawfully using a motor vehicle, and driving while disqualified.
The youths would appear in the Hamilton Youth Court on Monday, facing several charges including aggravated robbery.